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Finding the Fourth Proportional to 481,593.52, 664,604.04 and 290,570

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Solution

The fourth proportional to 481,593.52, 664,604.04 and 290,570 is: 400,989.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,593.52 : 664,604.04 = 290,570 : x
  2. Step 2: Convert to fraction form
    481,593.52/664,604.04 = 290,570/x
  3. Step 3: Cross multiply
    481,593.52x = 664,604.04 × 290,570
  4. Step 4: Simplify right side
    481,593.52x = 193,113,995,902.80
  5. Step 5: Solve for x
    x = 193,113,995,902.80/481,593.52
  6. Step 6: Final answer
    x = 400,989.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.